Vertical Heat and Salt Fluxes Induced by Inertia-Gravity Internal Waves on Sea Shelfстатья
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Дата последнего поиска статьи во внешних источниках: 17 апреля 2018 г.
Аннотация:Free inertia-gravity internal waves are considered in a two-dimensional vertically nonuniform flow
in the Boussinesq approximation. The equation for vertical velocity amplitude includes complex factors
caused by the gradient of the flow velocity component transverse to the wave-propagation direction; therefore, the eigenfunction and wave frequency are complex. It is shown that the decrement of damping (imaginary correction to the frequency) of 15-min internal waves is two orders of magnitude smaller than the wave frequency; i.e., the waves weakly damp. Vertical wave fluxes of heat and salt are nonzero due to the phase shift between fluctuations of the vertical velocity and temperature (salinity) different from . The vertical component of the Stokes drift speed is also nonzero and contributed into the vertical transport.